There is a brewing over the nation's highest court. Three Californians are among a handful of names being mentioned to fill the U.S. Supreme Court slot left open following the weekend death of Justice Antonin Scalia.

However, Republicans are vowing to block any nominee from President Barack Obama. It is all setting up a historic high-court showdown.

State Atty. Gen. Kamala Harris is frequently mentioned as a possible Supreme Court nominee. The problem is she has no judicial experience, is from liberal San Francisco, and her sights appear to be firmly set on the U.S. Senate.

ABC7 Political Analyst Carla Marinucci said, "Both of them have stellar records and both of them would be interesting additions to the court, not only because of the ethnic mix, but because of their background and their history."

Regardless, Senate Republicans are suggesting they may not even hold a hearing, no matter who it is. Within an hour of Justice Scalia's death, Senate Majority Leader Mitch McConnell, R-KY, declared, "...this vacancy should not be filled until we have a new President."

"I think both sides are willing to roll the dice here. The outcome is going to be very dramatic and it's going to be a battle royal," Marinucci said.

The White House says the president will go by the same criteria he used when he nominated Sonia Sotomayor and Elena Kagan to the Supreme Court. In the past, it has taken the Senate an average of 25 days to confirm, withdraw or reject a nominee.